Hi Hubert

Evan’s plugin is the right thing to use if you can; the core doesn’t include a 
builtin clock/timer because my early experiments showed that it can be quite 
punishing on power consumption/battery life.

Best wishes

Jeremy



> On 22 Jan 2019, at 14:35, Hubert <[email protected]> wrote:
> 
> OK, I've found this plugin 
> <https://evanbalster.com/tiddlywiki/formulas.html#Timer%20Plugin> by Evan 
> Balster, version 0.0.1 that does exactly what I'm looking for.
> 
> That said, I'd still love to hear your ideas though, especially the 
> background TW mechanics/limitations/other solutions to this problem.
> 
> Thank you,
> Hubert
> 
> On Tuesday, 22 January 2019 14:14:40 UTC, Hubert wrote:
> Hi everyone,
> 
> If I understand correctly, most content within a tiddler is static. Inline 
> javacript is not allowed, so macros will only re-calculate their output on 
> user interaction with a tiddler. For example, the <<now>> macro or Evan 
> Balster's <<formula>> macro will recalculate their output when the built-in 
> "More actions" TW button is pressed (it's located in the upper-right corner 
> of each tiddler frame).
> 
> What I'm trying achieve is make stuff happen with time being the trigger. The 
> simplest example would be building an auto-updating clock using the <<now>> 
> macro (this could be faked using SVG animations but that's not what I'm 
> looking for). Another example would be a reveal widget that will suddenly 
> display content when the current time matches a predefined value but without 
> any user interaction whatsoever. Such a solution would need to somehow 'see' 
> on its own that the time has changed. Is this possible?
> 
> Thank you in advance for sharing your ideas/knowledge.
> 
> -Hubert
> 
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